diff --git a/server/FFmpegSource.cpp b/server/FFmpegSource.cpp
index ec9e918d..95f079c7 100644
--- a/server/FFmpegSource.cpp
+++ b/server/FFmpegSource.cpp
@@ -118,8 +118,7 @@ void FFmpegSource::findAsync(int maxWaitMS, const function<void(const MediaSourc
     auto src = MediaSource::find(_media_info._schema,
                                  _media_info._vhost,
                                  _media_info._app,
-                                 _media_info._streamid,
-                                 false);
+                                 _media_info._streamid);
     if(src || !maxWaitMS){
         cb(src);
         return;
diff --git a/server/WebApi.cpp b/server/WebApi.cpp
index e4b18a6b..74d63149 100644
--- a/server/WebApi.cpp
+++ b/server/WebApi.cpp
@@ -439,14 +439,14 @@ void installWebApi() {
     api_regist1("/index/api/isMediaOnline",[](API_ARGS1){
         CHECK_SECRET();
         CHECK_ARGS("schema","vhost","app","stream");
-        val["online"] = (bool) (MediaSource::find(allArgs["schema"],allArgs["vhost"],allArgs["app"],allArgs["stream"],false));
+        val["online"] = (bool) (MediaSource::find(allArgs["schema"],allArgs["vhost"],allArgs["app"],allArgs["stream"]));
     });
 
     //测试url http://127.0.0.1/index/api/getMediaInfo?schema=rtsp&vhost=__defaultVhost__&app=live&stream=obs
     api_regist1("/index/api/getMediaInfo",[](API_ARGS1){
         CHECK_SECRET();
         CHECK_ARGS("schema","vhost","app","stream");
-        auto src = MediaSource::find(allArgs["schema"],allArgs["vhost"],allArgs["app"],allArgs["stream"],false);
+        auto src = MediaSource::find(allArgs["schema"],allArgs["vhost"],allArgs["app"],allArgs["stream"]);
         if(!src){
             val["online"] = false;
             return;
diff --git a/src/Common/MediaSource.cpp b/src/Common/MediaSource.cpp
index fafb13dd..ea5319d9 100644
--- a/src/Common/MediaSource.cpp
+++ b/src/Common/MediaSource.cpp
@@ -180,9 +180,8 @@ static void eraseIfEmpty(MAP &map, IT0 it0, IT1 it1, IT2 it2) {
     }
 };
 
-void findAsync_l(const MediaInfo &info, const std::shared_ptr<TcpSession> &session, bool retry,
-                 const function<void(const MediaSource::Ptr &src)> &cb){
-    auto src = MediaSource::find(info._schema, info._vhost, info._app, info._streamid, true);
+void MediaSource::findAsync_l(const MediaInfo &info, const std::shared_ptr<TcpSession> &session, bool retry, const function<void(const MediaSource::Ptr &src)> &cb){
+    auto src = MediaSource::find_l(info._schema, info._vhost, info._app, info._streamid, true);
     if(src || !retry){
         cb(src);
         return;
@@ -248,7 +247,11 @@ void MediaSource::findAsync(const MediaInfo &info, const std::shared_ptr<TcpSess
     return findAsync_l(info, session, true, cb);
 }
 
-MediaSource::Ptr MediaSource::find(const string &schema, const string &vhost_tmp, const string &app, const string &id, bool bMake) {
+MediaSource::Ptr MediaSource::find(const string &schema, const string &vhost, const string &app, const string &id) {
+    return find_l(schema, vhost, app, id, false);
+}
+
+MediaSource::Ptr MediaSource::find_l(const string &schema, const string &vhost_tmp, const string &app, const string &id, bool bMake) {
     string vhost = vhost_tmp;
     if(vhost.empty()){
         vhost = DEFAULT_VHOST;
@@ -419,12 +422,10 @@ void MediaSourceEvent::onNoneReader(MediaSource &sender){
 
     //如果mp4点播, 无人观看时我们强制关闭点播
     bool is_mp4_vod = sender.getApp() == recordApp;
-    //无人观看mp4点播时，3秒后自动关闭
-    auto close_delay = is_mp4_vod ? 3.0 : stream_none_reader_delay / 1000.0;
 
     //没有任何人观看该视频源，表明该源可以关闭了
     weak_ptr<MediaSource> weakSender = sender.shared_from_this();
-    _async_close_timer = std::make_shared<Timer>(close_delay, [weakSender,is_mp4_vod]() {
+    _async_close_timer = std::make_shared<Timer>(stream_none_reader_delay / 1000.0, [weakSender,is_mp4_vod]() {
         auto strongSender = weakSender.lock();
         if (!strongSender) {
             //对象已经销毁
@@ -467,7 +468,7 @@ MediaSource::Ptr MediaSource::createFromMP4(const string &schema, const string &
     try {
         MP4Reader::Ptr pReader(new MP4Reader(vhost, app, stream, filePath));
         pReader->startReadMP4();
-        return MediaSource::find(schema, vhost, app, stream, false);
+        return MediaSource::find(schema, vhost, app, stream);
     } catch (std::exception &ex) {
         WarnL << ex.what();
         return nullptr;
diff --git a/src/Common/MediaSource.h b/src/Common/MediaSource.h
index ab0a0cfa..299cf709 100644
--- a/src/Common/MediaSource.h
+++ b/src/Common/MediaSource.h
@@ -134,7 +134,7 @@ public:
     virtual bool isRecording(Recorder::type type);
 
     // 同步查找流
-    static Ptr find(const string &schema, const string &vhost, const string &app, const string &id, bool bMake = true) ;
+    static Ptr find(const string &schema, const string &vhost, const string &app, const string &id);
     // 异步查找流
     static void findAsync(const MediaInfo &info, const std::shared_ptr<TcpSession> &session, const function<void(const Ptr &src)> &cb);
     // 遍历所有流
@@ -142,9 +142,14 @@ public:
 
     // 从mp4文件生成MediaSource
     static MediaSource::Ptr createFromMP4(const string &schema, const string &vhost, const string &app, const string &stream, const string &filePath = "", bool checkApp = true);
+
 protected:
     void regist() ;
-    bool unregist() ;
+    bool unregist();
+
+private:
+    static Ptr find_l(const string &schema, const string &vhost, const string &app, const string &id, bool bMake);
+    static void findAsync_l(const MediaInfo &info, const std::shared_ptr<TcpSession> &session, bool retry, const function<void(const MediaSource::Ptr &src)> &cb);
 private:
     string _strSchema;
     string _strVhost;
diff --git a/src/Record/Recorder.cpp b/src/Record/Recorder.cpp
index 2ab341b7..2f0314cb 100644
--- a/src/Record/Recorder.cpp
+++ b/src/Record/Recorder.cpp
@@ -80,11 +80,11 @@ std::shared_ptr<MediaSinkInterface> Recorder::createRecorder(type type, const st
 }
 
 static MediaSource::Ptr getMediaSource(const string &vhost, const string &app, const string &stream_id){
-    auto src = MediaSource::find(RTMP_SCHEMA, vhost, app, stream_id, false);
+    auto src = MediaSource::find(RTMP_SCHEMA, vhost, app, stream_id);
     if(src){
         return src;
     }
-    return MediaSource::find(RTSP_SCHEMA, vhost, app, stream_id, false);
+    return MediaSource::find(RTSP_SCHEMA, vhost, app, stream_id);
 }
 
 bool Recorder::isRecording(type type, const string &vhost, const string &app, const string &stream_id){
diff --git a/src/Rtmp/FlvMuxer.cpp b/src/Rtmp/FlvMuxer.cpp
index bc29cf31..35564867 100644
--- a/src/Rtmp/FlvMuxer.cpp
+++ b/src/Rtmp/FlvMuxer.cpp
@@ -167,7 +167,7 @@ void FlvMuxer::stop() {
 
 ///////////////////////////////////////////////////////FlvRecorder/////////////////////////////////////////////////////
 void FlvRecorder::startRecord(const EventPoller::Ptr &poller,const string &vhost, const string &app, const string &stream,const string &file_path) {
-    startRecord(poller,dynamic_pointer_cast<RtmpMediaSource>(MediaSource::find(RTMP_SCHEMA,vhost,app,stream,false)),file_path);
+    startRecord(poller,dynamic_pointer_cast<RtmpMediaSource>(MediaSource::find(RTMP_SCHEMA,vhost,app,stream)),file_path);
 }
 
 void FlvRecorder::startRecord(const EventPoller::Ptr &poller,const RtmpMediaSource::Ptr &media, const string &file_path) {
diff --git a/src/Rtmp/RtmpSession.cpp b/src/Rtmp/RtmpSession.cpp
index d30eafaf..95076682 100644
--- a/src/Rtmp/RtmpSession.cpp
+++ b/src/Rtmp/RtmpSession.cpp
@@ -130,8 +130,7 @@ void RtmpSession::onCmd_publish(AMFDecoder &dec) {
         auto src = dynamic_pointer_cast<RtmpMediaSource>(MediaSource::find(RTMP_SCHEMA,
                                                                            _mediaInfo._vhost,
                                                                            _mediaInfo._app,
-                                                                           _mediaInfo._streamid,
-                                                                           false));
+                                                                           _mediaInfo._streamid));
         bool authSuccess = err.empty();
         bool ok = (!src && !_pPublisherSrc && authSuccess);
         AMFValue status(AMF_OBJECT);
diff --git a/src/Rtsp/RtpMultiCaster.cpp b/src/Rtsp/RtpMultiCaster.cpp
index b341a0fb..cf3a12b0 100644
--- a/src/Rtsp/RtpMultiCaster.cpp
+++ b/src/Rtsp/RtpMultiCaster.cpp
@@ -81,6 +81,7 @@ RtpMultiCaster::~RtpMultiCaster() {
     _pReader->setDetachCB(nullptr);
     DebugL;
 }
+
 RtpMultiCaster::RtpMultiCaster(const EventPoller::Ptr &poller,const string &strLocalIp,const string &strVhost,const string &strApp,const string &strStream) {
     auto src = dynamic_pointer_cast<RtspMediaSource>(MediaSource::find(RTSP_SCHEMA,strVhost,strApp, strStream));
     if(!src){
diff --git a/src/Rtsp/RtspSession.cpp b/src/Rtsp/RtspSession.cpp
index 45308943..d73b11f1 100644
--- a/src/Rtsp/RtspSession.cpp
+++ b/src/Rtsp/RtspSession.cpp
@@ -221,8 +221,7 @@ void RtspSession::handleReq_ANNOUNCE(const Parser &parser) {
     auto src = dynamic_pointer_cast<RtmpMediaSource>(MediaSource::find(RTSP_SCHEMA,
                                                                        _mediaInfo._vhost,
                                                                        _mediaInfo._app,
-                                                                       _mediaInfo._streamid,
-                                                                       false));
+                                                                       _mediaInfo._streamid));
     if(src){
         sendRtspResponse("406 Not Acceptable", {"Content-Type", "text/plain"}, "Already publishing.");
         string err = StrPrinter << "ANNOUNCE:"